<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>1_验证Diffing算法</title>
</head>
<body>
  <!-- 准备好一个"容器" -->
  <div id="test1"></div>

  <!-- 引入React核心库 -->
  <script type="text/javascript" src="../js/react.development.js"></script>
  <!-- 引入react-dom，用于支持react操作DOM -->
  <script type="text/javascript" src="../js/react-dom.development.js"></script>
  <!-- 引入babel，用于将jsx转为js -->
  <script type="text/javascript" src="../js/babel.min.js"></script>
  <!-- 引入prop-types，用于对组件标签属性进行限制 -->
  <script type="text/javascript" src="../js/prop-types.js"></script>

  <script type="text/babel">
    class Time extends React.Component {

      state = {
        date: new Date()
      }

      componentDidMount() {
        setInterval(() => {
          this.setState({
            date: new Date()
          })
        }, 1000)
      }
      render() {
        return (
          <div>
            <h1>hello</h1>
            <input type="text" />
            <span>
              现在是：{this.state.date.toTimeString()}
              <input type="text" />
            </span>
          </div>
        )
      }
    }

    // 2.渲染组件到页面
    ReactDOM.render(<Time />, document.getElementById('test1'))
  </script>
</body>
</html>
